Beneficiation method for enriching and recovering lithium from weathered clay type lithium ore

The invention discloses a beneficiation method for enriching and recovering lithium from weathered clay type lithium ore. The beneficiation method comprises the following steps that S1, weathered clay type lithium ore is crushed to be smaller than 2 mm; s2, water is added into the crushed ore for size mixing, and the mixture is placed in a stirring container to be fully soaked and stirred; s3, the ore pulp stirred in the step S2 is subjected to primary desliming, and fine silt 1 and settled sand 1 are obtained; s4, performing ultrasonic treatment on the settled sand 1 obtained in the step S3, and performing secondary desliming to obtain fine silt 2 and settled sand 2; s5, combining the fine silt 1 obtained in the step S3 and the fine silt 2 obtained in the step S4, and desliming again to obtain fine silt 3 and settled sand 3; and S6, the settled sand 3 obtained in the step S5 is subjected to reverse flotation impurity removal, lithium flotation concentrate is obtained, and reverse flotation adopts one-roughin